enc28j60: Move the Microchip driver

Move the Microchip driver into drivers/net/ethernet/microchip/ and
make the necessary Kconfig and Makefile changes.

CC: Claudio Lanconelli <lanconelli.claudio@eptar.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

drivers/net/ethernet/Makefile

@@ -36,6 +36,7 @@ obj-$(CONFIG_LANTIQ_ETOP) += lantiq_etop.o
 obj-$(CONFIG_NET_VENDOR_MARVELL) += marvell/
 obj-$(CONFIG_NET_VENDOR_MELLANOX) += mellanox/
 obj-$(CONFIG_NET_VENDOR_MICREL) += micrel/
+obj-$(CONFIG_NET_VENDOR_MICROCHIP) += microchip/
 obj-$(CONFIG_MIPS_SIM_NET) += mipsnet.o
 obj-$(CONFIG_NET_VENDOR_MYRI) += myricom/
 obj-$(CONFIG_FEALNX) += fealnx.o